Olympique Lyonnais suffered a disappointing 0-2 home defeat to RC Celta de Vigo in the first leg of their UEFA Europa League knockout tie at the Groupama Stadium. The result puts the French club in a precarious position ahead of the return trip to Spain, needing to overturn a two-goal deficit without the benefit of any away goals. Celta Vigo executed a classic away performance, defending resolutely and striking with lethal efficiency on the counter-attack. The deadlock was broken midway through the first half when a Celta forward capitalized on a defensive error to slot home. Lyon pushed for an equalizer, dominating possession and creating several chances, but were repeatedly denied by the outstanding Celta goalkeeper. The Spanish side sealed the victory in the final ten minutes, catching Lyon on the break again to score a decisive second goal. The match was not without controversy, as Lyon had a strong penalty appeal waved away by the referee in the second half, a decision that left the home crowd furious. This loss is a significant setback for Lyon's European ambitions this season. Lyon's coach expressed frustration, saying, "We controlled the game but made two big mistakes, and at this level you get punished. We must be much more clinical." The Celta manager was delighted, commenting, "The team showed incredible discipline and spirit. This is a fantastic result, but the tie is only at halftime." Lyon's lineup featured Lopes, Mata, O'Brien, Caleta-Car, Tagliafico, Caqueret, Matic, Cherki, Fofana, Lacazette, and Benrahma.